CN1196457A - Plunger automatic valve - Google Patents

Abstract

A plunger-type automatic valve with the principle of internally balanced cut-off valve and the structure of multi-purpose automatic piston valve features use of plunger instead of piston and flap, simple plate ring instead of cylinder sleeve, and electromagnet to control the operation of valve. Its advantages include multiple functions, low actuating force being 2% of that of traditional valve, safe self-locking and less electric consumption.

Description

Plunger automatic valve

Plunger automatic valve is the principle according to the automatic multi-purpose valve of piston type, and a kind of laborsaving, economize on electricity that innovation forms have multi-functional valves such as electronic, manual, self-locking simultaneously, belong to the automatic control stop valve field in the industrial pipeline.

Chinese patent discloses the automatic multi-purpose valve of a kind of piston type, and the patent No. is 942085434.This valve utilizes the inner equilibrium principle, has simplified the surge structure of valve of known gas one, and the power of opening, close only is 3 percent of traditional stop valve, and multi-purpose valve, but piston of its inside and cylinder sleeve have occupied bigger space.When with electromagnet this valve being carried out electronic control, electromagnet must be charged for a long time, the ability proper functioning, and in a single day circuit breaks down, and lacks the mechanism of a safe self-locking, and power consumption is bigger.

The purpose of this patent, be structures such as the piston that will further improve the automatic multi-purpose valve of piston type inside, cylinder sleeve, location, reduced volume, weight reduction, reduce flow resistance, adopt the open and close of control valve respectively of two electromagnet simultaneously, promptly cut off the electricity supply after the electromagnet charged generation thrust of moment (or suction), valve is worked under long-term uncharged condition, increase self locking safety, energy-saving and cost-reducing significantly.

This valve is to reach its purpose by such design: it is with a plunger, replaced the piston in the automatic multi-purpose valve of former piston type, replaced cylinder sleeve with a ring plate, plunger can upper and lowerly slide, break away from or act on valve seat under the effect of fluid pressure differential.In the manual top of the lever (joining same handle) of usefulness, be fulcrum with the cock-type joining shaft, left and right an electromagnet has been installed respectively opposed to each other, one only is used for control and opens, and another only is used for control and closes.In the side of lever, bored hole, a garden, there is spring in the garden in the hole, adorns a steel ball on the spring, be referred to as elastic steel ball, on the sidewall of the valve gap of elastic steel ball correspondence, process two spherical recesses, be referred to as ball-and-socket, the position of ball-and-socket, must be just and the open and close position of valve match.Electromagnet charged promotion lever of moment right-hand member as if the right moves downward, and elastic steel ball slips in the following ball-and-socket, and the valve of establishing this moment is for opening, and electromagnet cuts off the power supply, resets, but lever still keeps former enable possition not commutate; Anti-speech, electromagnet charged promotion lever of the moment left end on the left side, elastic steel ball then slips in the ball-and-socket of top, the valve closing of this moment, electromagnet cuts off the power supply, resets, but lever still maintains the closed position and does not commutate.In the structure of the automatic multi-purpose valve of former piston type, only used an electromagnet, electromagnet is only controlled an end of lever, and the other end then by spring control, is established the charged work of electromagnet, valve is for opening, in case circuit meets accident, electromagnet cuts off the power supply, resets, and valve leans on spring force with valve closing immediately, this is in the occasion of emphasizing self locking safety and do not allow the occasion of long-term charged work, is unfavorable for using.

This valve than having adorned an electromagnet more in the known technology, because internal structure is simplified, making it cost of production does not increase generally, but it works under long-term uncharged situation, and energy-efficient effect is arranged, and the occasion in necessity has guaranteed self locking safety.It economizes on electricity 90% compared to the prior art; Compare with motor-driven conventional valves, manufacture cost reduces by 50%, economize on electricity 50%.

The embodiment of this plunger automatic valve can further describe by accompanying drawing.Figure of description, it is the cut-open view of final assembly of this valve, as shown in the figure: plunger automatic valve, by valve body (1), valve gap (2), valve seat (3), ring plate (4), plunger (5), controller (6), pad (7), ball two valve rods (8), spring (9), cock-type joining shaft (11), about two solenoid valves (12), lever (13), ball-and-socket (14), elastic steel ball component such as (15) form.A little valve seat (16) is arranged at the middle installation and control device (6) of plunger (5), controller bottom.Fluid flows into ring plate epicoele (B) from input cavity (A) garden week gap h between ring plate (4) and plunger (5) of valve body (1).Plunger (5) can slide up and down under the effect of the fluid pressure differential of ring plate (4) top (B) and bottom (A), (C).Between ring plate (4) and the plunger (5) garden of gap h week the gross area, generally be less than the garden area of controller and little valve seat (16) diameter d.Lever (13) is a fulcrum with the center of cock-type coupking shaft (11), divides left and right two-part, and 2 electromagnet (12) are housed in the top of left and right two-part lever, respectively the open and close of control valve.An elastic steel ball (15) is equipped with in the side of lever (13), on the sidewall of the valve gap (2) corresponding with elastic steel ball (15), is processed with two ball-and-sockets (14), the position of ball-and-socket, and unlatching, closed position lucky and valve match.During valve opening, electromagnet (12) moment energising with the right, electromagnet (12) promotes lever (13) connection downwards and moves downward with handle, and sphere valve rod (8) upwards is raised, and breaks away from little valve seat (16), (B) chamber communicates with low pressure output cavity (C), the fluid pressure differential balance, (A) cavity pressure is greater than (B) cavity pressure at this moment, and plunger (5) rises, (A) chamber communicates with (C) chamber, and valve is opening state.Anti-speech, electromagnet moment energising with the left side, left side electromagnet promotes the left end of lever downwards, and sphere valve rod (8) is pressed towards down, contacts with little valve seat (16) sealing, (B) chamber and low pressure output cavity (C) are obstructed, at this moment, high pressure input cavity (A) communicates with (B) chamber, and (B) cavity pressure is greater than (C) cavity pressure, plunger (5) moves downward and is adjacent to valve seat (3), and valve is closed condition.Cut off the power supply after each electromagnet charged work of moment, lever still keeps original position, is because elastic steel ball (15) is stuck in the ball-and-socket (14), and the position of ball-and-socket (14) must accurately coincide with valve opening, the position closed.During throttle down, the slip resistance between only big bullet steel ball of the thrust of electromagnet (15) and the ball-and-socket (14) gets final product.

The most preferred embodiment of this patent is under the occasion of necessary safe self-locking and the long-term not charged work of electromagnet, realizes electronic Automatic Control; If circuit has a power failure, can extremely save power ground by active handle and realize manual semiautomatic control, its laborsaving, power savings obviously is better than traditional valve.

Claims (4)

1, a kind of plunger automatic valve that forms according to the principle innovation of the automatic multi-purpose valve of piston type, component such as, ring plate cold by valve body, valve gap, valve seat, post, controller, lever, electromagnet are formed, it is characterized in that: between its ring plate (4) and the plunger (5) certain clearance h is arranged, plunger (5) can slide up and down under the effect of the fluid pressure differential of ring plate (4) top and bottom.

2, valve according to claim 1 is characterized in that: between its ring plate (4) and the plunger (5) garden of gap h week the gross area, be equal to or less than the garden area of little valve seat (16) diameter d of controller.

3, valve according to claim 1, it is characterized in that: its lever (13) is a fulcrum with the center of cock-type coupking shaft (11), divide left and right two-part, 2 electromagnet (12), the open and close of control valve respectively are housed in the top of left and right two-part lever.

4, valve according to claim 1 is characterized in that: an elastic steel ball (15) is equipped with in the side of lever (13), on the sidewall of the valve gap (2) corresponding with elastic steel ball (15), has added 2 spherical recesses (14).